Can't get enough YouTube at the office? Now you can get almost all YouTube videos during your commute too, following an announcement to expand the mobile offering (http://m.youtube.com) of the UGC video-sharing site. That is, if you have one of the latest generations of handsets with a 3G operator - approximately 100 million devices worldwide.

Some other features that are included in the expanded mobile offering include the ability to rate videos and share clips with friends. There are also efforts to make it easier to upload videos directly from mobile devices to YouTube - that's going to start with limited devices, including some Sony Ericsson and Nokia models.

For now, Google and YouTube hope to get users accustomed to viewing video on their mobile devices. There are no immediate plans to monetize the service by showing ads ... but stay tuned for that.